/**
* Get the id of current activation group.
*
* @return the id of the current activation group or null if none exists.
*/
public static ActivationGroupID currentGroupID() {
try {
if (currentGroupId == null) {
// This will also assing the currentGroupId to the current
// (default) group of the default system.
setSystem(DefaultActivationSystem.get());
}
} catch (ActivationException e) {
InternalError ierr = new InternalError("Unable to activate AS");
ierr.initCause(e);
throw ierr;
}
return currentGroupId;
}
/**
* Get the current activation system. If the system is not set via {@link #setSystem} method, the
* default system for this virtual machine is returned. The default system is first searched by
* name "java.rmi.activation.ActivationSystem" on the activation registry port. The default value
* of the activation registry port is {@link ActivationSystem#SYSTEM_PORT}, but it can be changed
* by putting the system property java.rmi.activation.port. Both activation system and activation
* registry are provided by the RMI daemon tool, RMID, if it is running on the local host. If the
* RMID is not running, the internal transient activation system will be created and returned.
* This internal system is highly limited in in capabilities and is not intended to be used
* anywhere apart automated testing.
*
* @return the activation system for this virtual machine
* @throws ActivationException
*/
public static ActivationSystem getSystem() throws ActivationException {
if (system == null) system = DefaultActivationSystem.get();
return system;
}